Linking Mechanism Of Interlock Members For Robot

Abstract

A linking interlock mechanism in a biped robot is provided that prevents the reduction gears in the servo device from being damaged due to an external impulsive force. A servo horn is fit to the output shaft protruded from a servo device housing, which includes a motor, reduction gears, and the like. An interlock member for transmitting force externally is press fitted on the junction surface of the servo horn with the locking screw inserted via the washer. Salient portions are formed on the junction surface between the servo horn and the interlock member. The interlock member has depressed portions at the positions engaged with the salient portions. When a strong impulse force is externally added to the interlock member, the linking state between the interlock member and the servo horn is released instantaneously. This can prevent the reduction gears in the servo device from being damaged.

1 . A linking mechanism of interlock members for a robot comprising:
 a servo device;   a servo horn connected to an output shaft of said servo device; and   an interlock mechanism press-connected against said servo horn with a washer; wherein   a junction surface between said interlock member and said servo horn is press engaged with a depressed or salient portion disposed circumferentially or said junction surface.   
   
   
       2 . The linking mechanism as defined in  claim 1 , wherein said depressed or salient portion comprises hemispherical salient portions formed on the outer junction surface of said servo horn and conical depressed portions formed on the inner junction surface of said interlock member. 
   
   
       3 . The linking mechanism as defined in  claim 1 , wherein said washer member comprises a circular synthetic resin material. 
   
   
       4 . The linking mechanism as defined in  claim 1 , wherein said servo horn and the interlock member are press fit with locking screws screwed into said output shaft through the center of the washer member. 
   
   
       5 . The linking mechanism as defined in  claim 1 , wherein said interlock member comprises a frame or arm constructing a robot. 
   
   
       6 . A biped robot having a linking mechanism of interlock members for a robot as defined in  claim 1 , wherein said linking mechanism is adapted for use in joints at predetermined positions in said biped robot.